User Manual of A90 Series Inverter
234
acceleration/deceleration time unit is “0.1s”. Except for that in torque control (F13.06), all
the acceleration and deceleration time will change. For example, the value of F00.14 will
change from 15.00s to 150.0s by default.
Frequency hopping
point 1
0.00-20.00, 0.00 is invalid
Frequency hopping
point 2
0.00-20.00, 0.00 is invalid
Frequency hopping
point 3
0.00-20.00, 0.00 is invalid
The frequency hopping function (FH function for short) can prevent the output
frequency of the inverter from the mechanical resonance frequency point of the mechanical
load. If the inverter is prohibited from running at a constant speed within the frequency
hopping range, hopping will not occur during acceleration. Instead, the inverter will run
smoothly.
Time
Set frequency
Frequency
hopping point 3
Frequency
hopping point 2
Frequency
hopping point 1
Hopping range 3
Hopping range 2
Hopping range 1
Fig. 7-34 Schematic Diagram of Frequency Hopping
As shown in Fig. 7-34, the frequency hopping function is set in the form of “frequency
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